Topband: Common mode chokes

[Pete Smith]

I think the problem with that is that your active antenna will then be 
receiving a lot of crud from various sources in your ham-shack.  It's 
amazing how much noise I get at close range from my transceivers.  I see 
common mode suppression as a way to be *able* to use a long feedline to 
get the antenna away from all that.

73, Pete

On 7/8/2009 11:27 AM, Thomas Damboldt wrote:
> Hi,
>
> if I understand the common mode discussion correctly, a short
> (not necessarily active) antenna and a much longer feedline
> act together as kind of a dipole. If I connect my receiver
> with a very short feedline (say 1m), to the antenna, I should
> not be receiving much common mode noise. Is that true?
> Certainly worth trying.
>
> 73
> Tom, DJ5DT
>
>